AWS::EC2::SpotFleet BlockDeviceMapping
Specifies a block device mapping.
You can specify Ebs
or VirtualName
, but not both.
Syntax
To declare this entity in your AWS CloudFormation template, use the following syntax:
JSON
{ "DeviceName" :
String
, "Ebs" :EbsBlockDevice
, "NoDevice" :String
, "VirtualName" :String
}
YAML
DeviceName:
String
Ebs:EbsBlockDevice
NoDevice:String
VirtualName:String
Properties
DeviceName
-
The device name (for example,
/dev/sdh
orxvdh
).Required: Yes
Type: String
Update requires: Replacement
Ebs
-
Parameters used to automatically set up EBS volumes when the instance is launched.
Required: Conditional
Type: EbsBlockDevice
Update requires: Replacement
NoDevice
-
To omit the device from the block device mapping, specify an empty string. When this property is specified, the device is removed from the block device mapping regardless of the assigned value.
Required: No
Type: String
Update requires: Replacement
VirtualName
-
The virtual device name (
ephemeral
N). Instance store volumes are numbered starting from 0. An instance type with 2 available instance store volumes can specify mappings forephemeral0
andephemeral1
. The number of available instance store volumes depends on the instance type. After you connect to the instance, you must mount the volume.NVMe instance store volumes are automatically enumerated and assigned a device name. Including them in your block device mapping has no effect.
Constraints: For M3 instances, you must specify instance store volumes in the block device mapping for the instance. When you launch an M3 instance, we ignore any instance store volumes specified in the block device mapping for the AMI.
Required: Conditional
Type: String
Update requires: Replacement